Run a vnc client on your desktop (krdc, vinagre, …). If you are on the production network, you can directly connect to the vnc server at nefgpuXX:5901

Start an xterm on the vnc. Now in order to use the GPU accelerated X, you have to use vglrun to start your application: You can test it with glxgears: vglrun glxgears. virtualgl will use the local X server to render the application (using the GPU), and will display the result on the unaccelerated vnc.

If you have to run a qt5 application, don’t forget to add the +xcb option to vglrun, otherwise it will fail.

How to do it outside INRIA network

If you are not on the production network at sophia, it’s a bit more tricky.

Submit your job with an explicit private key (your local private key of nef with no passphrase)